Laboratory, high-performance and arbitrary power supplies

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TOE 8730

Dual-Output, Triple-Output, Quintuple-Output Power Supplies up to 150 W

The dual-output power supplies
of the 8732 series offer two absolutely identical supply units in a single housing. The outputs are electrically isolated from each other and floating. They can be easily connected either in parallel or in series, and are additionally provided with a tracking facility that allows output II to be synchronized by output I. The two power supplies then provide a positive and a negative voltage compared to common reference point. Current limits for the two outputs can be set independently of each other. In addition, the power supplies are equipped with three digital displays, and allow external voltage measurement inthe ranges 0 to 20 V and 0 to 200 V. The voltages at outputs I and II are measured with autoranging. Up to 19.99 V, the resolution is 10 mV; above 20 V, the resolution is 100 mV. The outputs I and II can be optionally adjusted by an external control voltage (0 to 10 V) via an analog control input.

The triple-output power supplies
of the 8733 series have three independent floating outputs. The 16 V, 32 V and 48 V outputs are mainly intended to supply linear circuits. The output voltage and output current are adjustable using ten-turn potentiometers. A tracking facility is provided. The 0 to 7 V output has a current rating of 3 A or 5 A as standard and is chiefly intended for supplying digital circuits. The power supplies also have three digital displays as standard. The voltages at outputs I and II are automatically displayed with a resolution of 10 mV up to 19.99 V and a resolution of 100 mV above 20.0 V. The current and voltage of outputs I, II and III can be optionally set by an external control voltage (0 to 10 V) via an analog control input.

The quintuple-output power supplies
The TOE 8735 power supplies have five independent floating outputs. The 16 V and 32 V outputs are mainly used to supply linear circuits, the 7 V output chiefly serves to supply digital systems. The symmetrical fixed voltage output can be used to supply bipolar or CMOS components. The fixed voltage output ± 15 V can be switched internally to ± 12 V. The 16 V and 32 V outputs are provided with a tracking facility. The output values are displayed on three selectable 3½-digit LCDs; the max. resolution is 10 mV or 1 mA. The current and voltage of outputs I, II and III can be optionally set by an external control voltage (0 to 10 V) via an analog control input (Option: TOE 8730/253).

Special features

  • Dual-output, triple-output and quintuple-output power supplies
  • Extremely low residual ripple < 50 μV
  • Electrically decoupled outputs
  • Precise digital displays
  • Analog remote contro
  • Resolution up to 1 mA
  Output 1 Output 2 Output 3 Output 4/5 
Model Voltage Current Voltage Current Voltage  Current  Voltage    Current 
Dual-output power supplies 
TOE 8732-1
TOE 8732-2
TOE 8732-3
0 - 16 V
0 - 32 V
0 - 48 V
0 - 2,0 A
0 - 1,0 A
0 - 0,8 A
0 - 16 V
0 - 32 V
0 - 48 V
0 - 2,0 A
0 - 1,0 A
0 - 0,8 A		  
 		      
Triple-output power supplies
TOE 8733-1
TOE 8733-2
TOE 8733-3
TOE 8733-4
0 - 16 V
0 - 32 V
0 - 48 V
0 - 32 V
0 - 2,0 A
0 - 1,0 A
0 - 0,8 A
0 - 2,0 A
0 - 16 V
0 - 32 V
0 - 48 V
0 - 32 V
0 - 2,0 A
0 - 1,0 A
0 - 0,8 A
0 - 2,0 A
0 - 7 V
0 - 7 V
0 - 7 V
0 - 7 V
0 - 5 A
0 - 5 A
0 - 3 A
0 - 3 A		    
Ouintuple-output power supplies
TOE 8735-1
TOE 8735-2
TOE 8735-4
TOE 8735-5
0 - 16 V
0 - 32 V
0 - 16 V
0 - 32 V
0 - 2,0 A
0 - 1,0 A
0 - 2,0 A
0 - 1,0 A
0 - 16 V
0 - 32 V
0 - 16 V
0 - 32 V
0 - 2,0 A
0 - 1,0 A
0 - 2,0 A
0 - 1,0  A
0 - 7 V
0 - 7 V
0 - 7 V
0 - 7 V
0 - 5 A
0 - 5 A
0 - 5 A
0 - 5 A
± 15 V
± 15 V
±   5 V
±   5 V
0,5 A
0,5 A
1,5 A
1,5 A
Outputs                
Voltage 0 - 16 V 0 - 32 V  0 - 32 V 0 - 48 V 0 - 7 V 0 - 7 V ± 5 V ± 15 V
Current 0 -  2 A  0 -  1 A 0 -  2 A 0 - 0.8 A 0 -  3 A 0 -  5 A 1.5 A 0.5 A
Digital displays. 3½-digits 0 0 0 0 0 0 - -
Externally programmable 0 to 10 V (option) 0 0 0 0 0 0 - -
Constant voltage mode  
Setting using ten-turn potentiometer; resolution 
0.02 %
0.02 %
0.02 %
0.02 %
0.02 %
0.02 % 
-
-
Voltage stabilization with change in load 0 to 100 % 0.02 % 0.01 % 0.02 % 0.01 % 0.1 % 0.1 % 0.05 % 0.05 %
With change in line voltage 
± 10 %
5*10-5
5*10-5
5*10-5
5*10-5
10-4
10-4
10-3
5*10-5  
With change in temperature 10-4/K  10-4/K 10-4/K 10-4/K 10-4/K 10-4/K 10-4/K  10-4/K
Residual ripple Urms 50 μV 50 μV 100 μV 100 μV 50 μV 50 μV 100 μV 80 μV
Drift within  8 hours 0.01 % 0.01 % 0.01 % 0.01 % 0.01 % 0.01 % 0.01 % 0.01 %
Regulation time with change in load from 20 % to 100 %
and setting to within 0.1 % Urated		 10 μs 10 μs 20 μs 20 μs 50 μs   50 μs 50 μs 50 μs
Constant current mode  
Setting using ten-turn potentiometer; resolution 		 0.04 % 0.04 % 0.04 % 0.04 % 0.04 % 0.04 % - -
Current stabilization 
With change in load 0 to 100 %
With change in line voltage
± 10 %
With change in temperatur 
Residual ripple Irms
0.02 %

2*10-4
10-4/K
50 μA
0.04 %

4*10-4
10-4/K
30 μA
0.04 %

4*10-4
10-4/K
60 μA
0.04 %

2*10-4
10-4/K
20 μA  
0.05 %

5*10-4
10-4/K
100 μ  
0.05 %

5*10-4
10-4/K
100 μ  
-
- 
Drift within 8 hours 0.1 % 0.1 % 0.1 % 0.1 % 0.1 % 0.1 % -  - 
Output
Isolation		 Floating and electrically isolated
± 250 V against ground
Line Voltage 115 V/230 V ± 10 %
47 Hz to 63 Hz
Power consumption Approx. 230 VA
Protective measures Class 1 equipment in accordance with DIN EN 61140
Operating temperature   0 °C to 40 °C
Storage temperature -20 °C to 70 °C
Refence temperature 23 °C
Dimensions 265 x 147 x 330 mm
Weight Approx. 8.5 kg
Housing Aluminium

Dual-output power supplies

TOE 8732-1 Power supplies 2 x 16 V / 2 x 2,0 A
TOE 8732-2 Power supplies 2 x 32 V / 2 x 1,0 A
TOE 8732-3 Power supplies 2 x 48 V / 2 x 0,8 A

 

Triple-output power supplies

TOE 8733-1 Power supplies 2 x 16 V / 2 x 2,0 A   7 V / 5 A
TOE 8733-2 Power supplies 2 x 32 V / 2 x 1,0 A   7 V / 5 A
TOE 8733-3 Power supplies 2 x 48 V / 2 x 0,8 A   7 V / 3 A
TOE 8733-4 Power supplies 2 x 32 V / 2 x 2,0 A   7 V / 3 A

 

Ouintuple-output power supplies

TOE 8735-1 Power supplies 2 x 16 V / 2 x 2,0 A   7 V / 5 A   ± 15 V / 0,5 A
TOE 8735-2 Power supplies 2 x 32 V / 2 x 1,0 A   7 V / 5 A   ± 15 V / 0,5 A
TOE 8735-4 Power supplies 2 x 16 V / 2 x 2,0 A   7 V / 5 A   ±   5 V / 1,5 A
TOE 8735-5 Power supplies 2 x 32 V / 2 x 1,0 A   7 V / 5 A     ± 5 V / 1,5 A

 

Options

TOE 8730/252 External control 2 x U / 2 x I
TOE 8730/253 External control 3 x U / 3 x I
TOE 9008 Carrying handle
TOE 9501 19"-Adapter, 3 HU


External calibration certificate  on request
External calibration certificate + test report

Supplied accessories

  • 1 power cord
  • 1 instruction manual 
Software & Data Sheet